COUNTY REPORT SC

Allendale County, South Carolina

6 ZIP codes · Home Safety Score unavailable · 0 of 6 tracked ZIP records scored · Updated

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:

Unavailable
0 of 6 tracked ZIP records scored
6
ZIP Codes
$66K
Median Home Value
$2,167
Avg Remediation (327% of home value)

ZIP Code Risk Map

Water Quality Map: Allendale County, South Carolina

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 17.5 (asthma 11%, diabetes 21.6%)

Estimated additional annual cost per homeowner: $3,223, driven primarily by sea_level

65.6% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 11% (national: 8.9%)
Diabetes 21.6% (national: 10.5%)
Obesity 46.7% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1984
Median Build Year
65.6%
Pre-1978 Housing
39/100
Infrastructure Stress Indicator
40%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $3,223

Sea Level Rise $3,000/yr
Energy Code Gap $378/yr
Flood $200/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

4,341 housing units in Allendale County

Pre-1940 5%
1940–1959 15%
1960–1979 27%
1980–1999 38%
2000+ 14%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Water Safety Affordability

How much it costs to fix water issues relative to home values in Allendale County

$66K
Median Home Value
$2,167
Est. Remediation Cost
3.3%
of Home Value
Remediation as % of home value moderate burden

Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.

Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.

Health Outcomes vs National Average

CDC PLACES data for Allendale County residents

Asthma 11% (US avg: 8.9%)
Diabetes 21.6% (US avg: 11%)
Obesity 46.7% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems serving Allendale County

3 community water systems serving Allendale County.

Systems with the most violations in Allendale County

3 water systems with recorded EPA violations.

All ZIP Codes in Allendale County

6 ZIP codes tracked in Allendale County.

# ZIP Code City Safety Score Grade Violations Home Value
1 29810 Allendale 4 $66K
2 29827 Fairfax 11 $60K
3 29836 Martin $56K
4 29840 Mount Carmel $83K
5 29846 Sycamore
6 29849 Ulmer 7 $154K

Recommended Buyer Guides for Allendale County

If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations - federal data drives the order, not retailer arrangements.

Overview

Allendale County in South Carolina covers 6 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

3 of 3 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← Back to South Carolina Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

How many water systems serve Allendale County?
Allendale County is served by 3 public water systems that supply drinking water to residents across 6 ZIP codes.
What is the biggest environmental risk in Allendale County?
The primary environmental risk factor in Allendale County is sea_level. This contributes to an estimated additional annual cost of $3,223 per homeowner.
How old are homes in Allendale County?
The median home build year in Allendale County is 1984. 65.6% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Allendale County, South Carolina Home Safety Profile. https://zipcheckup.com/county/south-carolina/allendale/
BibTeX
@misc{zipcheckup-county-south-carolina-allendale,
  author = {{ZipCheckup}},
  title  = {{Allendale County, South Carolina Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/south-carolina/allendale/}
}

Page version: August 2026.

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